RxCocoa로 CollectionView 구현하기 ( 참고 사이트 )
Delegate 사용
extension ViewController: UICollectionViewDataSource{
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 100
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as? CollectionViewCell else {
return UICollectionViewCell()
}
cell.label.text = "\(indexPath.item + 1)"
return cell
}
}
extension ViewController: UICollectionViewDelegate{
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
print("\(indexPath.item)")
}
}
RxCocoa 사용
_ = Observable.just((1...100).map{"\($0)"})
.bind(to: collectionView.rx.items(cellIdentifier: "CollectionViewCell", cellType: CollectionViewCell.self)){ (index, element, cell) in
cell.label?.text = "\(element)"
}
_ = collectionView.rx
.modelSelected(String.self)
.subscribe(onNext: { item in
print("\(item)")
})
.disposed(by: disposeBag)
